The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 1992
Filed:
Jul. 19, 1990
Susumu Sato, Tokyo, JP;
Norihiro Kakimoto, Tokyo, JP;
Mikio Miyata, Kanagawa, JP;
Shigezo Uga, Kanagawa, JP;
Kunie Nakamura, Kanagawa, JP;
Asai Germanium Research Institute Co., Ltd., Tokyo, JP;
Sato Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
The present invention is to provide a highly effective agent for preventing and treating opacity of lens, containing the organic germanium compound represented by the fornula (1); ##STR1## (wherein R1 to R3 represent hydrogen atoms, lower alkyl groups each of which may be the same or different and selected from the group consisting of methyl group, ethyl group, etc., or phenyl groups substituted or unsubstituted; X represents a hydroxyl group, an O-lower alkyl group, an amino group or O.sup.- Y.sup.+ {Y represents a metal such as sodium, potassium, etc., or a compound having a basic group such as lysozyme and basic amino acid, etc.})or (2) a combination of the organic germanium compound and aminoguanidien, or (3) a combination of the organic germanium compound specifically defined above and the specific phenoxazine derivative.